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public class testthree {
 public static void main(String[] args) {
  testthree t = new testthree();
  t.test();
 }
 private static void test() {
  int d = 0;
  int f = 4;
  int x = 0;
  int y = 6;
  for (i ......

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Interface)£¬BAPIÊÇSAPϵͳ¶ÔÍâÌṩµÄһϵÁнӿÚ,Ö÷ÒªÊÇʹµÚÈý·½³ÌÐòͨ¹ýÕâЩ½Ó¿ÚÀ´Ê¹ÓÃSAP,´Ó¶ø·½±ã¿Í»§¶¨ÖÆÄ³Ð©³Ì
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Java SE ¶à̬

/*¶à̬ʾÀý*/
package demo;
class AA {
 public void f(){
  System.out.println("f in AA");
 }
}
class BB extends AA{
 public void f(){
  System.out.println("f in BB");
 }
 
}
public class Test_Dt {
 public static void main(String[] args) ......

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class TA{
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// public static final int m=9;
// ¾²Ì¬±äÁ¿ÊÇÊôÓÚÀàµÄ£¬ËüµÄ´æ´¢ÇøÓòÓëÀàÏà¹Ø
public static  int m=9;
 static {
  System.out.println("In Static m=" ......
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